Flex自定义右键菜单-1屏蔽默认菜单

不要试图改变flash插件自带的右键菜单，没有办法解决
自带的右键菜单坏处大大
1.不能去掉默认的几项（关于）
2.不能实现多层

只能使用js屏蔽掉默认右键事件，然后弹出自己的右键菜单来实现
搜索了半天，找了个可行的方案，实现第一步：
1.屏蔽默认菜单，并响应右键事件

var RightClick  =  {
     /**
     *  Constructor
      */  
    init: function () {
         this .FlashObjectID  =   " customRightClick " ;
         this .FlashContainerID  =   " flashcontent " ;
         this .Cache  =   this .FlashObjectID;
         if (window.addEventListener){
             window.addEventListener( " mousedown " ,  this .onGeckoMouse(),  true );
        }  else  {
            document.getElementById( this .FlashContainerID).onmouseup  =  function() { document.getElementById(RightClick.FlashContainerID).releaseCapture(); }
            document.oncontextmenu  =  function(){  if (window.event.srcElement.id  ==  RightClick.FlashObjectID) {  return   false ; }  else  { RightClick.Cache  =   " nan " ; }}
            document.getElementById( this .FlashContainerID).onmousedown  =  RightClick.onIEMouse;
        }
    },
     /**
     * GECKO / WEBKIT event overkill
     *  @param  {Object} eventObject
      */
    killEvents: function(eventObject) {
         if (eventObject) {
             if  (eventObject.stopPropagation) eventObject.stopPropagation();
             if  (eventObject.preventDefault) eventObject.preventDefault();
             if  (eventObject.preventCapture) eventObject.preventCapture();
                if  (eventObject.preventBubble) eventObject.preventBubble();
        }
    },
     /**
     * GECKO / WEBKIT call right click
     *  @param  {Object} ev
      */
    onGeckoMouse: function(ev) {
           return  function(ev) {
         if  (ev.button  !=   0 ) {
            RightClick.killEvents(ev);
             if (ev.target.id  ==  RightClick.FlashObjectID  &&  RightClick.Cache  ==  RightClick.FlashObjectID) {
                RightClick.call();
            }
            RightClick.Cache  =  ev.target.id;
        }
      }
    },
     /**
     * IE call right click
     *  @param  {Object} ev
      */
    onIEMouse: function() {
           if  (event.button  >   1 ) {
             if (window.event.srcElement.id  ==  RightClick.FlashObjectID  &&  RightClick.Cache  ==  RightClick.FlashObjectID) {
                RightClick.call(); 
            }
            document.getElementById(RightClick.FlashContainerID).setCapture();
             if (window.event.srcElement.id)
            RightClick.Cache  =  window.event.srcElement.id;
        }
    },
     /**
     * Main call to Flash External Interface
     * 'flexview_rightClick'
      */
    call: function() {
        document.getElementById( this .FlashObjectID).flexview_rightClick();
    }
}

     <! DOCTYPE html PUBLIC  " -//W3C//DTD XHTML 1.0 Transitional//EN "   " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " >
     < html >
     < head >
     < meta http - equiv = " Content-Type "  content = " text/html; charset=utf-8 "   />
     < title > TEST </ title >
    
     < script type = " text/javascript "  src = " swfobject.js " ></ script >
     < script type = " text/javascript "  src = " rightClick.js " ></ script >

    
     </ head >
     < body onload = " RightClick.init(); " >
         < div id = " flashcontent " > Flash Player  10  required </ div >
         < script type = " text/javascript " >
           var so  =   new  SWFObject( " RightClickAS3.swf " ,  " customRightClick " ,  " 560 " ,  " 420 " ,  " 9 " ,  " #CCCCCC " );
            so.addParam( " quality " ,  " high " );
            so.addParam( " name " ,  " customRightClick " );
            so.addParam( " id " ,  " customRightClick " );
            so.addParam( " AllowScriptAccess " ,  " always " );
            so.addParam( " wmode " ,  " opaque " );
            so.addParam( " menu " ,  " false " );
            so.addVariable( " variable1 " ,  " value1 " );
            so.write( " flashcontent " );
         </ script >
     </ body >
     </ html >
   

package  com
{
     import  flash.display. * ;
     import  flash.external.ExternalInterface;
     public   class  RightClick  extends  Sprite
    {
         public  function RightClick()
        {
            var methodName:String  =   " flexview_rightClick " ;
            var method:Function  =  onRightClick;
            ExternalInterface.addCallback(methodName, method);
        }
         private  function onRightClick(): void  {
            var mx: int   =  stage.mouseX;
            var my: int   =  stage.mouseY;
            trace(mx  +   " : "   +  my);
             if (my >   0   &&  my  < stage.stageHeight  &&  mx >   0   &&  mx  < stage.stageWidth) {
                 //  YOUR CODE HERE
            }
        }
    }
}